fix: remove cache from test runs

.github/workflows/ci.yml

@@ -64,9 +64,6 @@ jobs:
 
     runs-on: ${{ matrix.os }}
 
-    env:
-      WX_WIDGETS_BUILD_OUT_DIR: "${{github.workspace}}/wx-widgets-build"
-
     steps:
       - uses: actions/checkout@v2
       - uses: Swatinem/rust-cache@v1
@@ -83,13 +80,6 @@ jobs:
         run: |
           cargo install rust-script --version "0.7.0"
           cargo install cargo-make --version 0.34.0
-      - name: "Cache wxWidgets builds"
-        if: ${{ runner.os != 'Linux' }}
-        uses: actions/cache@v3
-        with:
-          path: |
-            ${{env.WX_WIDGETS_BUILD_OUT_DIR}}
-          key: ${{ runner.os }}-${{ hashFiles('espanso-modulo/build.rs') }}-${{ hashFiles('espanso-modulo/vendor/*') }}
       - name: Run test suite
         run: cargo make test-binary